accessing servlets

hi! i just passed prog. cert. and i am a beginner in servlets. my servlets are in C:\WINDOWS\Desktop\jsdk2.1\webpages\WEB-INF\servlets and i use http:/localhost:8080/servlet/MYServletName in the browser to access the servlets but if i want to place my servlets in another dir. say dir1 in servlets directory ie in C:\WINDOWS\Desktop\jsdk2.1\webpages\WEB-INF\servlets\dir1

the on accessing the servlet by http:/localhost:8080/servlet/dir1/MYServletName gives error